Use of resistive sheets in damping cavity resonance

Use of resistive sheets in damping cavity resonance

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Radiated emission measurements in screened rooms suffer from measurement repeatability owing to the excitation of room resonances. A possible solution to this problem is found in partial damping through selective placement of minimal amounts of absorber in the room. The authors consider the use of resistive sheets in this manner.


    1. 1)
      • Hayward, A.C., Wickenden, C.A.: `Radiated emission measurements inside shieldedenclosures', IEE Colloquium EMC tests in screened rooms, April 1995, Dig. No.1995/074.
    2. 2)
      • Dawson, L., Marvin, A.C.: `Alternative methods of damping resonances in a screened roomin the frequency range of 30 – 200 MHz', 6th Int. Conf. on EMC, 1989, University of York, p. 217–223IEREConference Publication No. 81, .
    3. 3)
      • Aoki, T.: `Improvement of the resonance in RFI chambers', IEEE Int. Conf. on EMC, 1989, Denver, p. 400–405.
    4. 4)
      • R. Hall , R. Mittra . Scattering from a periodic array of resistive strips. IEEE Trans.Antennas Propag. , 9 , 1009 - 1011

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